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Practical revision guides, exam board comparisons and study advice — written by our founder, an MSc-qualified tutor with 20+ years of experience. No fluff, just the things students and parents actually ask us.
How Do You Raise a Sunken Ship? The Physics of Shipwreck Recovery
The Vasa came back after 333 years underwater. The Costa Concordia was rotated upright by cables and refloated. The Titanic has never been raised at all. The real physics — buoyancy, pressure, and moments — behind all three.
How ISRO Reached Mars for $74 Million: The Physics Behind Mangalyaan
India reached Mars orbit on its first attempt, for less than the visual-effects budget of a Hollywood film. The real orbital mechanics — Hohmann transfers, the Oberth effect, and a clever workaround for a rocket that wasn't powerful enough.
From mph to Mach: Why Do We Measure Speed Differently?
A car's speedometer, a ship's knots, and a fighter jet's Mach readout are all answering the same question — so why don't they use the same units? The practical reason behind each one, from mph to km/s.
Kepler's Second Law: Why Planets Speed Up When They Get Close
Halley's Comet crawls for decades, then whips around the Sun in weeks. A 400-year-old rule explains exactly why — and satellite engineers still use it on purpose today.
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